1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e3f011b4bce24344b020a33ecad8f109fb06761eddfcf412e2b43bdbba595fa. Chain 2 (Bitcoin): anchored in block 953617 (2026-06-14T09:00:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1a863f35-2b55-416e-8b34-79fcbc76ff0c.json and https://artists.proofprofile.net/proofs/artist/1a863f35-2b55-416e-8b34-79fcbc76ff0c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Colección de Música Típica Alemana del Volga Vol. 2 (Thi Shlajt)
Colección de Música Típica Alemana, Vol. 1
Colección de Música Típica Alemana, Vol. 3
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07060c53b63e9eb03ad3b73b64ab86190a6d795160ca01182bb4dcc5e39d5f0e. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG100710731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d34804be1590487554c3b403790ca964ad218fa9a8dce34259e6b44b4a8881e. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG100710732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dc76922a03269c3b07fe8e64898ea0a96048770f1161d5f657ef667cda0c9e7. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG100710733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf93b6207197d9b61fb485c0a624c29da00c4dd86ac7db2c93cbec128e81f2e0. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:21:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG100710734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x966d31aa7dc2353db09e77b768bcdddab02de184857337bab03309d598b0ef5c. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG100710735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x909e063baedc74a358175a91b904cb731a28f4981e012001107e3f0ff872cf0f. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG100710740.
Der vater lauft die mutter mit der bürste nach
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc7447ad758590ecc8f3ce5a36de5fa0439b9c5eec49e2fbd50143f1c6cfbbaf. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG100710741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b6429f18b10f3d814b3280f72065badc34818595394172675b351d058e5d824. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG100710742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf134026fb877672431018f88147f75731c4b7e5bdc044e486cb67f3be4c68759. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG100710744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f840b803907afb283a2d5178779d823408fe757e65efdf4ec1a306c9902c82. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG100710745.
Thes Keit Shei! / Das Geht Schön! / ¡Esto Va Lindo!